1. Editorial

   • M. Flato
   • E. Lieb

   EditorialNotes Pages: iii - iii

2. Existence of infinitely many complex eigenvalues for the mono-energetic neutron transport operator

   • Xu Bang Qing
   • Xao Chang Gui
   • Wang Yong Jiu

   OriginalPaper Pages: 95 - 105

3. Geometric quantization of the heavy top

   • Mircea Puta

   OriginalPaper Pages: 107 - 112

4. Gauge fixing problem in the conformal QED

   • Shoichi Ichinose

   OriginalPaper Pages: 113 - 120

5. A time-dependent, two Hilbert space approach to long-range quantum scattering

   • Denis A. W. White

   OriginalPaper Pages: 121 - 126

6. Stability of energy gaps under variations of the magnetic field

   • G. Nenciu

   OriginalPaper Pages: 127 - 132

7. Stress tensor for GYM in 4p dimensions and viability of GYM-Higgs in four dimensions

   • G. M. O'Brien
   • D. H. Tchrakian

   OriginalPaper Pages: 133 - 140

8. Shearfree and conformally Ricci-flat perfect fluids

   • N. Van den Bergh

   OriginalPaper Pages: 141 - 146

9. Exact solutions of the nonlinear Schrödinger equation in time-dependent parabolic density profiles

   • G. Burdet
   • M. Perrin

   OriginalPaper Pages: 147 - 152

10. Integrable model of Yang-Mills theory and quasi-instantons

    • V. A. Yatsun

    OriginalPaper Pages: 153 - 159

11. Reduction of Poisson manifolds

    • Jerrold E. Marsden
    • Tudor Ratiu

    OriginalPaper Pages: 161 - 169

12. The natural spinor connection on S ₈ is a gauge field

    • G. Landi

    OriginalPaper Pages: 171 - 175

13. Erratum

    Erratum Pages: 177 - 177